<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<meta about="By CoolCat">
<head>
    <meta charset="UTF-8">
    <title>phpstudyCheck</title>
</head>
<body>
<form action="{{ url_for('index') }}" method="POST">
    Target: <input type="text" name="vurl"><br>
    <input type="submit" value="Check">
    status：{{ stat }}
</form>
</body>
</html>